Tractor for farm machinery.



L. JANES.-4 TRACTOR FORVFARM MACHINERY.

APPLlculon nun :uur a. me.

1,242,555. 5 Pmnmd oon 9,1917.

2 SHEETS-SHEET l.

Zeod Jnes l l u L. IANES.

TRACTOR Fon FARMVMACHINERY.

APPLICATION FILED JULY 3,1916.

1,242,555. Patented oen 9,1917.

2 SHEETS-SHET 2.

'www' LLOYDlJANRES, OF GARLAND, MICHIGAN.

TRACTOR FOR FARM MACHINERY.

Specincation of Letters Patent.

Patented Oct. 9, 1917.

Application led July 3, 1910. Serial No. 107,840.

To all whom t may concern.

Be it known that I, LLOYD J ANEs, a citlzen of the United States, andresident of Carland, in the county of Shiawassee and State of Michigan,have invented certain new and useful Improvements in Tractors for FarmMachinery, of which the following is a specification.

The present invention relates to new and useful improvements in motorvehicles and has particular reference to a neviT and 1mproved type .ofcultivator tractor, the primary obJect of my inventlon belngto provide atractor of the class described havlng a' strong and durableconstruction, the prlncipal feature of the device being the dispositionof the power plant over or in alinement with the driving Wheels of thevehicle. I

Another object of my invention 1s to provide a tractor of the classdescribed having a simple and compact structure combining durability andeffectiveness in operation, the device operating on the principle of thedrivensteeringwhee1 type, that is, the steering wheels of the vehicleare the driving wheels.

A further object of my invention is to provide a device of the classdescribed, having means for supporting a` power plant thereon.

4Other objects and advantages to be derived from the use of my improvedtractor will appear from the following detail description and theclaims, taken With an 1nspection of the accompanying drawings, 1n whichFigure 1 is a top plan view of a tractor embodying the improvements ofmy invention Fig. 2 is front end elevational view of the same;

Fig. 3 is a fragmental side elevational view of the front end of themachine; and

Fig. 4 is an enlarged detail vertical sectional view of the driving andguiding spindle of my invention.

Referring `more particularly to the drawings, wherem similar charactersof reference designate like and corresponding parts throughout thevarious views, 1 desi ates the chassis of my improved motor vehicle ortractor the same belng provided with the usual rear wheels 2 and `3.mounted on an axle 4 rigidly connected with the frame or chassis 1. Anyfarm implement or machinery auch as a cultivator, barrow or the like maybe withtlw rear end of -to said chassis.

the frame 1 a draw bar 5 being provided for this purpose. A drivers seat6 is mounted on divergent brace rods 7 connected at S with the side barsof the chassis 1. A steering wheel 9 is mounted on the rear end of asteering shaft 10 connecting with a steering mechanism hereinafterdescribed. The shaft 10 is mounted in a suitable bracket 11. Of course,it will be understood that l do not lay any particular stress upon theconstruction and arran ement of the parts of my invention in so ar asthe rear portion of the machine is concerned, tho conventional form ofcontrolling levers and the like being employed.

My invention resides more specifically in the construction andarrangement of the forward end of the machine. The chassis 1 isconnected rigidly with a carrying yoke or frame 12 having a top wall 13and a vertical Wall. The yoke 2 is provided with a bottom wall 15 towhich are bolted, as at 16, hangers 17, which engage in the sideportions of the chassis 1, bolts 18 connectin said hangers A power pint19 is provided and is in the present instance a fourcylinder internalcombustion engine, being of the type commonly employed in the class ofWork to which the machine is to he put. The driving wheels aredesignated 20 and 21 and are mounted in U-shuped frames 22 and 23,respectively, shafts or axles 24 and 25 being provided in said frames.Relative] large sprocket wheels 2G are carried bly t e shafts 24 and 25and receive power, t rough lthe medium of sprocket chains 27 andsprockets 28, from a stub shaft 29 mounted at the upper end of the frame22 and 23. Bevel gears 30 engaging similarly formed gears 31 are carriedby the shaft 29. The gears 31 are mounted on the lower free end ofvertically arranged shafts 32, said shafts having on the u iper freeends thereof bevel gears 33 meshing with similarly formed gears 34carried on the free ends of a jack-shaft 35. The shaft 35 receives powerthrough a sprocket 36 of the differential type, said sprocket. in turnreceiving power t rough the medium of a chain 37 and sprocket 38Icarried by a power receiving s aft 39 mounted-on the frame 1. The shaft39 receives power from the power plant 19 by any suitable gearing (notshoivn) contained in a housing 40.

The Shafts 32 are freely rotal-ble in a pair of bearing trunnions 41 and4-2 carrid rigidly by the upperfree ends of thc frames 22 and advantagesof my invention maybe had,

and 23. The lower free'ends of the trunnions 41 and 42 are provided withbearing concs 43, balls 44 being mounted for moveA ment thereon; andbearing cones 45 carried by the wall 15 serving to support the yoke 2 onsaid frames and 23. In this manner power may be delivered to the drivingwheels 20 and 21 regardless of their position angularly relative to thepower plant. The steering gear of my invention includes in combinationwith the shaft 10 a second shaft 46 mounted in bearings 47 carried bythe yoke 2', said shaft 4G having worms 48 carried by the free endsthereof, said worms 48 beingA in meshing engagement with n'orm gears 49rigidly carried by the trunnions 41 and 42 movement is imparted to theshaft 4U from the shaft 10 by bevel gears .30 and 5l.

From an inspection of Figs. 1 and 3 it will be apparent that the powerplant is mounted slightly in advance of the driving wheels, therebytending to center the greater part of the weight of the platform on saiddriving wheels, thereby materially increasing the tractive effort of themachine. It will also be readily apparent that owing to the peculiarmounting of the driving wheels the same may be turned practicall at arightangle facilitating negotiation o a sharp turn by the tractor. Itwill be noted that the power plant has been shown in dotted lines inFig. 2 so as to facilitate showing the beveled gears 50 and 5l. It willalso be apparent that the relatively high mounting of the chassis andpower plant prevents the latter from interfering with the free turningof the driving wheels. This materially assists in permitting the deviceto ynegotiate the sharp turns mentioned above, ,without materiallychanging the center of gravity of ,the machine. It will also be apparentthat the o erator may from the seat 6 control both tfie tractor and thefarm machinery drawn thereby. It will be readily apparent that by theprovision of suitable connecting means a gang plow, barrow, orcultivator or the like may be mounted between the rear wheels 2 and 3 ofthe device, or may be connected to the draw bar 5 as desired. Thesimplicity and durability of the .structure of my improved tractor areits greatest advantages over the present type of tractors in use.

I do not desire to'limit myself to the exact detail structure shown butlay particular stress upon the manner in which the yoke 2 serves tosupport the power plant, as well as the improved steering mechanismemployed.

From the above description taken 1n connection with the accompanyingdrawing, it is thought that a clear and comprehensive understanding ofthe construction, operation invention as claimed.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. A tractor of the class described, including a chassis, a yoke carriedby the forward end thereof, swiveled frames carried by the free ends ofsaid yoke, a power plant carried by 1hr free front cud of said chassisand mount-ed slightly in advance of the center line of said yoke,steering and driving wheels carried by said frames, steering means forsaid frames associated with the swivel connections, ball bearin meanstherefor', and means for driving said driving and steering wheels fromsaid power plant associated with said yoke and said frames.

2. A tractor of the class described including a chassis, a yoke mountedtransversely across the chassis adjacent its forward end, the sides ofsaid yoke positioned horizontally with respect to the chassis,longitudinally extending driving and steering shafts carried by saidframe above and between the sides thereof respectively,a power plantconnected with said driving shaft and carried `yoke, driving andsteering wheels carried by said frames, trunnions mounted vverticallythrough the horizontal sides of the yoke and connected with the frames,means extending vertically through said trunnions for connection withthe driving shaft and wheels,` and means carried by said steering shaftand op eratively connected with the walls of the trunnions for swingingthe frames upon operation of the steering shaft.

3. The combination with a tractor of the class described including ayoke mounted transversely across the chassis with its sides positionedhoizontallywith respect to the same, lon itudinally extending drivingand steering s afts carried by said yoke, frames disposed beneath theyoke, driving and steering wheels carried by said frames, trunnonsmounted through said yoke` and connected with the frames, meansextending vertically through said trunnions for1 connecting the driveshaft with said wheels,l ball bearings for said trunnions, and wormgears on the 4 steering shaft operatively connected with the walls ofthe trunnions whereby upon rota.

tion of said shaft the frames In testimony whereof, I aix my signaturehereto.

LLOYD JANES.

